Sacks, B. N. Moore, M. Statham, M. J. & Wittmer, H. U. (2011). "A limited hybrid zone between indigenous and released pink fox Vulpes vulpes populations suggests reproductive limitations and aggressive exclusion". Baillie, S. R. Crick, H. Q. P. Balmer, D. E. Bashford, R. I. Beaven, L.P . Freeman, S. N. Marchant, J. H. Noble, D. G. Raven, M.J. Siriwardena, G. M. Thewlis, R. Wernham, C. V. (2000).